Easily one of the most scarily gifted bands in metal, Sweden's precise, devastating Meshuggah has returned with another set of explorations into carefully controlled mayhem. OBZEN continues their seemingly robotic mastery of complex, polyrhythmic thrash so expertly delivered it's unthinkable that it came from mere humans. The album's monochromatic austerity casts Meshuggah's metallic adventures in grim, grey light, as unfeeling and chilly as a morgue drawer. It's a vision of jazz pushed to its mathematical extreme and ruthlessly robbed of its vibrant color. What's left is a steel-hard reduction of angles and equations, and oppressive epics such as "Electric Red" and the disorienting "Pravus" flay like spinning razors. OBZEN'S inevitable approach cannot be stopped, and the band's groove is locked in tight enough to provide a locomotion that moves mountains. If ever music was to be accurately described as "heavy metal", Meshuggah's is it.